Consider a composite wall that includes an $8-$mm$-$thick hardwood siding, $40-$mm by $130-$mmhardwood studs spaced $0\mathrm{.}65$ m apart on center, with glass fiber insulation $($paper faced, $28$ kg$/$m$3),$ and a $12-$mm layer of gypsum $($vermiculite$)$ wall board. What is the thermal resistance if the wall is $2\mathrm{.}5$ m high by $6\mathrm{.}5$ m wide $($having $10$ studs, each $2\mathrm{.}5$ m high$),$ and has inside and outside air temperatures of $21\backslash$deg C and $1\backslash$deg C respectively? What is the heat loss through this wall?